AMALGAMATED INSTRUMENT RM6-IV Mode d’emploi

RM6-IV

DIN Rail Mount

DC Current/DC Voltage

Process Monitor

Operation and Instruction Manual

Introduction

Thismanualcontainsinformationontheinstallationandoperationof

theRM6-IVmonitor.TheRM6-IVacceptsinputsintheranges0to20mA, 4

to20mA, 0 to100mV,0to1Volt,0 to 10 Volts, 0 to100Voltsoruserset

input (called the USER range) limits anywhere within the above ranges.

Selection of input range is via the INPt function. The SCLE function is

used to scale any of the standard input ranges whilst the USER input is

scaled using the CAL1 and CAL2 “live” input functions.

The displayed output may be scaled to read in any engineering

units. A square root extractor is included and can be configured as

required.Twoalarm/control relaysareprovided,one ofwhich(relay2) may

be configured via a DIP switch to operate as a hardware failure alarm. The

4-20mA recorder output included is easily setup to retransmit between

scaled input values.

Unless otherwise specified at the time of order your RM6-IV has

been factory set to a standard configuration. This configuration can be

easily changed by the user. All changes to configuration are made via the

four push buttons ( P,F,^and v) located at the front of the unit.

The RM6 series instruments are designed for high reliability in

industrial applications. The LED display can be set for desired brightness

level to suit most locations and light levels.

Mechanical Installation

The dimensions of the RM6-IV are shown in the diagrams below.

The RM6 is designed for DIN rail, horizontal mounting. The instrument

snapsonto35mmDIN standardrails(EN50022).ToinstalltheRM6simply

clip onto the rail shown below. To remove lever the lowerarm downwards

as illustrated below. DIMENSIONS

REMOVING FROM

THE DIN RAIL

CLIPPING THE INSTRUMENT

ONTO THE DIN RAIL

Electrical Installation

The diagrams below show the electrical connection points for the

RM6-IV. As the instrument is designed for continuous use no power switch

is fitted. It is recommended that an external switch and fuse be provided to

allow the unit to be removed for servicing.

The terminal blocks are of the plug in type for ease of connection.

Wires of up to 1.5mm diameter (2.5mm dia. for power supply and relay

terminals) may be fitted. Connect the wires to the appropriate terminals as

indicated in the diagrams below. Ensure that all connections are correct

before switching on. When power is applied the instrument will cycle

throughadisplaysequence,seethe“SwitchingOnTheInstrument”section

for full details of display messages. At the end of the switch on display

sequencea“livereading”will be shown on thedisplayifaninputis present.

A test input or a known sensor input may be used at this stage to check the

operation of the instrument.

Examples of sensor connection.

DIP Switch & Link Settings

TheRM6hastwoDIPswitchesandasetofinputlinkslocatedonthe

main board. To dismantle the instrument and gain access to the switches

and links firstly remove the earth screw which passes through the side

panel of the aluminium case then remove the four screws which secure the

front display panel to the case and pull the display out of the case.

DIP Switch 1 - When set to the OFF position the instrument behaves

normally.Whensettothe ON position the instrument will block access

to any functions thus providing security for the existing setup. If an

attemptismadetoenterCALorfunctionsetupmodeswiththeswitchin

the ON position the message NO ACCS will flash indicating that the

access is blocked.

DIP Switch 2 - When set to the OFF position the instrument behaves

normally and there is access to alarm 1 and 2 functions. When set to

ON alarm 2 becomes a dedicated hardware failure alarm. Alarm 2 will

operate in the normally closed (energised) mode and will open

(de energise) if the entire instrument, its analog to digital converter or

its micro controller fails. In the ON position there will be no access to

alarm 2 functions since this alarm is now dedicated.

Input Links - Input links on the main board are used to select the

required input range, ensure that the link setting corresponds to the

software setting (see INPt function). To change a link setting simply

pullthetabconnectedtothelinktoremoveitfromtheunwantedsetting

and place the link or links in the required position. Note the 4-20mA /

0-20mA and 0-0.1V inputs each require two links.

Main Board

Switching On The Instrument

When the instrument has been electrically connected you can view

the status of the input range and measurement mode settings by applying

power and watching the display sequence. If you connect a sensor or test

voltage/current you will also see the reading obtained from the sensor or

test input. Upon applying power the display automatically scrolls through

five displays. The first lights up all LED digits i.e. displays eights. By

watching this display you can confirm that all display segments are

functioning. The second display is a factory identification message. The

third display gives the software revision number of the instrument. The

fourthdisplayshowstheinputrangeselected,seethe“FunctionsAvailable”

and “Setting Up The RM6-IV” chapters if this is not the range you require.

The fifth display shows the measuring mode being used, again see the

“FunctionsAvailable”and“SettingUpTheRM6-IV”sectionsfordetails.The

sixthdisplayshows the sensor/testinput reading,ifany input isconnected.

The switch on display sequence is illustrated in the diagram below.

Functions Available

Note: Some of the functions described in this chapter are available

only when the instrument is powered up in CAL mode. See “Setting Up the

RM6-IV”,page10,fordetailsofthismode.Someofthesefunctionsareonly

seen when USER input mode and some when in the standard voltage or

currentselectioninputmode.See the function tables and detailsin“Setting

Up the RM6-IV”.

Two measuring modes are available. These are:

Standard mode - This mode is indicated by Stnd on the display.

Use this mode for linear measurement applications.

Squarerootmode-ThismodeisindicatedbySqRt onthedisplay.

Use this mode when the square root facility is required in the measurement

being made.

These modes are chosen under the “Select” (SLCt) function. The

mode chosen determines how the sensor inputs (input (I NPt) function)

will be interpreted by the instrument. See “Setting Up The RM6-IV” chapter

for full details and set up procedure for each mode and function.

Brief Description of Functions:

Alarm/Control relay functions - Two Alarm/Control relays are

provided, each one can be adjusted to change the low setpoint (A1Lo and

A2Lo), the high setpoint (A1Hi and A2Hi), the hysteresis or deadband

(A1HY and A2HY), the trip time (A1tt and A2tt) additionally each can

be set to operate as normally open (A1n.o and A2n.o) or normally closed

(A1n.c and A2n.c). (Note: DIP Switch 2 is used to select alarm 2

operation, refer to page 5).

Retransmission output - The recorder output or analog

retransmissionoutputisset at4-20mA. ThefunctionsREC_ andREC~ set

the display values at which 4 and 20mA are transmitted respectively.

Digital filter (FLtr) - allows the user to alter the input filter level

from 0 to 8, this is a weighted averaging type of filter and is used when the

instrument is functioning with inputs carrying electrical “noise”. The highest

setting will give the highest filter level (i.e. it will filter out higher levels of

noise) but it will also give the slowest display response time. Thus a setting

of 8 will give a higher filter level than a setting of 5, but the setting of 5 will

give a faster display response. Choose a level which is just high enough to

filter out the noise present to ensure optimum response time. A setting of 3

is standard.

Display brightness (brgt) - allows the setting of the display

brightness level from 0 to 15, where 15 is the highest brightness level.

Decimalpoint(dCpt)-allowstheusertoalter theplacementof the

decimal point. Displays such as 294.3,29.43 etc. may be set.

Setpoint access enable (SPAC) - Can be set to on or OFF, when

set to OFF the alarm setpoint functions will only be accessible when

powering up the instrument in CAL mode. When set to on the alarm

setpointfunctionsselectedinA!SA andA@SA willbeaccessiblebynormal

function setup mode entry. See “Setting Up the RM6-IV” chapter for details

of calibration and function setup modes.

Alarm 1 setpoint access select (A!SA) - When SPAC is set to on

these two functions allow for one or both setpoints for the alarm to be

accessed via function setup mode entry only (i.e. there is no need to enter

CAL mode). Selections are A1Lo (low setpoint accessible), A1Hi (high

setpoint accessible) and A!bt (both setpoints accessible).

Alarm 2 setpoint access select (A@SA) - As above but choices are

for alarm 2 e.g. A@bt.

Input selection (INPt) - Allows the selection of the input ranges to

be used. The input ranges available are: 0 - 20mA (0-20), 4 - 20mA

(4-20), 0 - 1 Volt (0-1), 0 - 10 Volts (0-10), 0 - 100 Volts (0=00) and

user(USER).TheUSER function allows theinputlimitstobe set anywhere

within the limits of the other ranges e.g. 3 - 16mA. The use of the USER

mode is described in the “Setting Up The User Function”, page 21. Ensure

that the link settings on the main circuit board correspond to the input

selectionmadeinthisfunction,see“DIPSwitch&LinkSettings”,page5.

Calibrationpoints(CAL1&CAL2) -(seenonlyinUSER mode)The

calibration function is seen only in USER mode where input low and high

(0% and 100%) levels are variable. Entering the calibration points allows

the instrument to store the actual input signal levels at the input limits.

Scale (SCLE) - (not seen in USER mode) The scale function is

used as a separate function in non USER mode and used with CAL1 &

CAL2 if in USER mode. Within the scale function the display values for the

input limits are entered.

Offset (OFSt) - (seen only in USER mode) The offset function

allows the entry of a single value by which the calibration curve is to be

adjusted before being displayed.

Uncalibrate (UCAL) - The uncalibrate function allows the user to

reset the functions back to the factory settings. See the “Factory

Configuration” section for a table of factory settings and a record of user

changes made to these settings.

Select (SLCt) - from within this function one of the two measuring

modes (Standard or Square Root) is selected.

7 Function Tables

Initial display Next display Default setting Record your

settings

A1Lo Value in memory OFF

A1Hi Value in memory OFF

A2Lo Value in memory OFF

A2Hi Value in memory OFF

A1HY Value in memory 1

A2HY Value in memory 1

A1tt Value in memory 0

A2tt Value in memory 0

A1n.o/A1n.c A1n.o or A1n.c A1n.o

a2n.o/A2n.c A2n.o or A2n.c A2n.c

REC_ Value in memory 0

REC~ Value in memory 1000

FLtr 0 to 8 3

brGt 0 to 15 15

dCPt 0, 0.1, 0.02 or

0.003 0

SPAC on orOFF on

A1SA A1Lo, A1Hi or

A!bt A!bt

A2SA A2Lo, A2Hi or

A@bt A@bt

INPt

0-20, 4-20,

0-0.1, 0-1

0-10, 0-100

or USER

4-20

*CAL1 SCL1

value 0.0

*CAL2 SCL2

value 100.0

SCLE

En0 or4

followed by

En20, 0.1,1,

10 or100

0.0

and

100.0

*OFSt Scale

Value

UCAL CAL

CLR

SLCt Stnd

SQRt Stnd

Notes: * Means function is only available in USER mode.

Shaded functions are available only through power up CAL mode entry.

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